Lift truck mast



FIG. 1 is a front isometric view of a lift truck mast showing our newdesign;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

In FIGS. 1-7, the broken lines indicate environmental features and formno part of the claimed design.

CLAIM We claim the ornamental design for a lift truck mast, as shown and described. 